61 static int w1_ds2438_get_page(struct w1_slave *sl, int pageno, u8 *buf)  in w1_ds2438_get_page()  argument
71 		if (w1_reset_select_slave(sl))  in w1_ds2438_get_page()
75 		w1_write_block(sl->master, w1_buf, 2);  in w1_ds2438_get_page()
77 		if (w1_reset_select_slave(sl))  in w1_ds2438_get_page()
81 		w1_write_block(sl->master, w1_buf, 2);  in w1_ds2438_get_page()
83 		count = w1_read_block(sl->master, buf, DS2438_PAGE_SIZE + 1);  in w1_ds2438_get_page()
95 static int w1_ds2438_get_temperature(struct w1_slave *sl, int16_t *temperature)  in w1_ds2438_get_temperature()  argument
103 	mutex_lock(&sl->master->bus_mutex);  in w1_ds2438_get_temperature()
106 		if (w1_reset_select_slave(sl))  in w1_ds2438_get_temperature()
108 		w1_write_8(sl->master, W1_DS2438_CONVERT_TEMP);  in w1_ds2438_get_temperature()
110 		mutex_unlock(&sl->master->bus_mutex);  in w1_ds2438_get_temperature()
117 		if (mutex_lock_interruptible(&sl->master->bus_mutex) != 0) {  in w1_ds2438_get_temperature()
125 	if (w1_ds2438_get_page(sl, 0, w1_buf) == 0) {  in w1_ds2438_get_temperature()
131 	mutex_unlock(&sl->master->bus_mutex);  in w1_ds2438_get_temperature()
137 static int w1_ds2438_change_config_bit(struct w1_slave *sl, u8 mask, u8 value)  in w1_ds2438_change_config_bit()  argument
145 		if (w1_reset_select_slave(sl))  in w1_ds2438_change_config_bit()
149 		w1_write_block(sl->master, w1_buf, 2);  in w1_ds2438_change_config_bit()
151 		if (w1_reset_select_slave(sl))  in w1_ds2438_change_config_bit()
155 		w1_write_block(sl->master, w1_buf, 2);  in w1_ds2438_change_config_bit()
158 		status = w1_read_8(sl->master);  in w1_ds2438_change_config_bit()
177 			if (w1_reset_select_slave(sl))  in w1_ds2438_change_config_bit()
182 			w1_write_block(sl->master, w1_buf, 3);  in w1_ds2438_change_config_bit()
184 			if (w1_reset_select_slave(sl))  in w1_ds2438_change_config_bit()
188 			w1_write_block(sl->master, w1_buf, 2);  in w1_ds2438_change_config_bit()
196 static int w1_ds2438_change_offset_register(struct w1_slave *sl, u8 *value)  in w1_ds2438_change_offset_register()  argument
202 	if (w1_ds2438_get_page(sl, 1, w1_page1_buf) == 0) {  in w1_ds2438_change_offset_register()
207 			if (w1_reset_select_slave(sl))  in w1_ds2438_change_offset_register()
211 			w1_write_block(sl->master, w1_buf, 9);  in w1_ds2438_change_offset_register()
213 			if (w1_reset_select_slave(sl))  in w1_ds2438_change_offset_register()
217 			w1_write_block(sl->master, w1_buf, 2);  in w1_ds2438_change_offset_register()
224 static int w1_ds2438_get_voltage(struct w1_slave *sl,  in w1_ds2438_get_voltage()  argument
233 	mutex_lock(&sl->master->bus_mutex);  in w1_ds2438_get_voltage()
235 	if (w1_ds2438_change_config_bit(sl, DS2438_STATUS_AD, adc_input)) {  in w1_ds2438_get_voltage()
241 		if (w1_reset_select_slave(sl))  in w1_ds2438_get_voltage()
243 		w1_write_8(sl->master, W1_DS2438_CONVERT_VOLTAGE);  in w1_ds2438_get_voltage()
245 		mutex_unlock(&sl->master->bus_mutex);  in w1_ds2438_get_voltage()
252 		if (mutex_lock_interruptible(&sl->master->bus_mutex) != 0) {  in w1_ds2438_get_voltage()
260 	if (w1_ds2438_get_page(sl, 0, w1_buf) == 0) {  in w1_ds2438_get_voltage()
267 	mutex_unlock(&sl->master->bus_mutex);  in w1_ds2438_get_voltage()
273 static int w1_ds2438_get_current(struct w1_slave *sl, int16_t *voltage)  in w1_ds2438_get_current()  argument
278 	mutex_lock(&sl->master->bus_mutex);  in w1_ds2438_get_current()
280 	if (w1_ds2438_get_page(sl, 0, w1_buf) == 0) {  in w1_ds2438_get_current()
287 	mutex_unlock(&sl->master->bus_mutex);  in w1_ds2438_get_current()
296 	struct w1_slave *sl = kobj_to_w1_slave(kobj);  in iad_write()  local
302 	mutex_lock(&sl->master->bus_mutex);  in iad_write()
304 	if (w1_ds2438_change_config_bit(sl, DS2438_STATUS_IAD, *buf & 0x01) == 0)  in iad_write()
309 	mutex_unlock(&sl->master->bus_mutex);  in iad_write()
318 	struct w1_slave *sl = kobj_to_w1_slave(kobj);  in iad_read()  local
327 	if (w1_ds2438_get_current(sl, &voltage) == 0)  in iad_read()
339 	struct w1_slave *sl = kobj_to_w1_slave(kobj);  in page0_read()  local
348 	mutex_lock(&sl->master->bus_mutex);  in page0_read()
354 	if (w1_ds2438_get_page(sl, 0, w1_buf) == 0) {  in page0_read()
360 	mutex_unlock(&sl->master->bus_mutex);  in page0_read()
369 	struct w1_slave *sl = kobj_to_w1_slave(kobj);  in page1_read()  local
378 	mutex_lock(&sl->master->bus_mutex);  in page1_read()
384 	if (w1_ds2438_get_page(sl, 1, w1_buf) == 0) {  in page1_read()
390 	mutex_unlock(&sl->master->bus_mutex);  in page1_read()
399 	struct w1_slave *sl = kobj_to_w1_slave(kobj);  in offset_write()  local
402 	mutex_lock(&sl->master->bus_mutex);  in offset_write()
404 	if (w1_ds2438_change_offset_register(sl, buf) == 0)  in offset_write()
409 	mutex_unlock(&sl->master->bus_mutex);  in offset_write()
418 	struct w1_slave *sl = kobj_to_w1_slave(kobj);  in temperature_read()  local
427 	if (w1_ds2438_get_temperature(sl, &temp) == 0)  in temperature_read()
439 	struct w1_slave *sl = kobj_to_w1_slave(kobj);  in vad_read()  local
448 	if (w1_ds2438_get_voltage(sl, DS2438_ADC_INPUT_VAD, &voltage) == 0)  in vad_read()
460 	struct w1_slave *sl = kobj_to_w1_slave(kobj);  in vdd_read()  local
469 	if (w1_ds2438_get_voltage(sl, DS2438_ADC_INPUT_VDD, &voltage) == 0)  in vdd_read()